Geothermal evidence for fluid flow through the gas hydrate stability field off central chile - transient flow related to large subduction zone earthquakes ?

GEOPHYSICAL JOURNAL INTERNATIONAL (PRINT);
Geophys. J. Int.

dc.creatorDíaz-Naveas, Juan
dc.creatorGrevemeyer , Ingo
dc.creatorKaul, Norbert
dc.date2017-04-27T18:53:54Z
dc.date2022-07-07T02:27:48Z
dc.date2017-04-27T18:53:54Z
dc.date2022-07-07T02:27:48Z
dc.date2006
dc.date.accessioned2023-08-21T21:06:02Z
dc.date.available2023-08-21T21:06:02Z
dc.identifier0
dc.identifierD04I1111
dc.identifierD04I1111
dc.identifierWOS:000238748300037
dc.identifier0956-540X
dc.identifierhttps://hdl.handle.net/10533/198002
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8282269
dc.descriptionFluids are suspected to play a major role in the nucleation and rupture propagation of earthquakes. In Chile, seismological data were previously interpreted to indicate that fluids captured in the fault zone are released periodically during large underthrust earthquakes, leading to post-seismic fluid flow. In central Chile, heat flow derived from the presence of a bottom simulating reflector (BSR) show a smooth trend across the margin. BSR-derived data are in excellent agreement with thermal subduction zone models. Over the young accretionary prism, both BSR-derived and measured surface heat flow support a common trend. Landwards of the backstop, however, measured heat flow triples over a distance of 20-30 km, producing a profound discrepancy to the BSR-derived data. We suggest that this disparity is related to transient flow of warm fluids through the gas hydrate stability zone possibly caused by fluids released after large underthrust earthquakes. Such flow events may inherently affect the distribution of solid gas hydrates between the seafloor and the BSR.
dc.description0
dc.description8
dc.descriptionFONDEF
dc.descriptionigrevemeyer@ifm-geomar.de
dc.description0
dc.description1
dc.descriptionFONDEF
dc.description166
dc.languageENG
dc.publisherWILEY-BLACKWELL PUBLISHING, INC
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relationinfo:eu-repo/grantAgreement/Fondef/D04I1111
dc.relationinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.relationhttps://doi.org/10.1111/j.1365-246X.2006.02940.x
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleGeothermal evidence for fluid flow through the gas hydrate stability field off central chile - transient flow related to large subduction zone earthquakes ?
dc.titleGEOPHYSICAL JOURNAL INTERNATIONAL (PRINT)
dc.titleGeophys. J. Int.
dc.typeArticulo
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.coverageMALDEN


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